Seiko Cal. 4578 - 941

This Automatic model from 1983 features a 39mm Gold-Plated case. With its 22mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-e74e07fed047]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1983

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